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TomDav

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    Ringwood, Hampshire
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  1. For comparison, this is the graph of zonal wind against time for 18z. Needs to dip under 0 m/s for an SSW i think
  2. Zonal winds at 10hPa 60N dropping to 14.6 m/s at T384
  3. https://ozonewatch.gsfc.nasa.gov/meteorology/wind_2015_MERRA_NH.html Last technical SSW in mid winter was Jan 2013:
  4. Record breaking in terms of zonal winds but too late in the season to have much impact
  5. This fix was to remove the anomalous cold pool in the western Atlantic at initialization I believe, so it shouldn't impact future forecasts
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